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bimbla
Joined: 13 Jul 2001
Posts: 536
Helped: 13
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 16 Jun 2004 16:03 Switch Mode Regulated DC Supply |
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I want to eliminate the 50Hz input transformer in the regulated power supply design operating from mains.
Can I have a reference to those you normally find in DVD players etc.?
I will come up with means to change the o/p power rating.
The electric isolation transformer should be in the HF switching section.
Any ready references are welcome.
bimbla.
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goodboy_pl
Joined: 12 Mar 2002
Posts: 243
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| 18 Jun 2004 1:03 Re: Switch Mode Regulated DC Supply |
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several manufacturer are designing integrated switchers for flyback switched mode power supplies like:
www.irf.com
www.powerint.com (topswitch)
www.st.com (viper)
refer to their application notes for details (specially powerint !!!) about transformer design and construction, closing the feedback loop, and isolation using optocoupler.
BEST!
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alphi
Joined: 23 Dec 2001
Posts: 439
Helped: 1
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| 18 Jun 2004 2:01 Re: Switch Mode Regulated DC Supply |
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| you can go to www.mcu.cz to download dvd shcematics,then find it's power supply.
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kiks
Joined: 01 Jun 2004
Posts: 23
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| 26 Jun 2004 22:59 Re: Switch Mode Regulated DC Supply |
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| With regard to a switched mode power supply, does anyone have a circuit for a switched mode power supply for converting 220v ac to 12v dc at 500ma? I have a bit of a space constraint so a conventional linear power supply cannot be used.
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Moderator
Joined: 12 Jul 2004
Posts: 8
Location: Earth
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| 12 Jul 2004 15:54 Re: Switch Mode Regulated DC Supply |
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Hi kiks,
go to powerint website. they have a low power family called Linkswitch which is suitable for ur application
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